Spiral spring wrapper



jam 2(1), 1925.

J. YOLO SPIRAL SPRING WRAPPER Filed DeC.

jm/vento@ (fos @pk galo 'or indeed any other suitable fabric.

Patented Jan. 20, 1925.

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JOSEPH YOLO, OF YAKIMA, WASHIGTON.

SPIRAL SPRING WRAPPER.

Application filed December 22, 1923. Serial No. 682,178.

To all whom. it Imay concern.'

Be it known that JOSEPH YoLo, citizen of the United States, residing at Yakima, in the county of Yakima and State of XV ashington, has invented certain new and useful Improvements in Spiral Spring Vrappers, of which the following is a specification.

This invention relates to a spiral wrapper for vehicle springs and it has for its object to provide a device of this naturel which will be of simple construction, economical to manufacture, will present a sightly appearance in use, Will keep out dust and dirt and will retain lubricants just as edectually as more expensive devices heretofore employed.C

It is a wellknown fact that the source of most of the squeaks in automobilesis in the springs. The task of f lubricating the springs is a more or less 'troublesome one and the practice is becoming increasingly Widespread of enclosing the springs in casings of leather, rubber or other flexible material, said casings serving to exclude dust and dirt and to retain the lubricant for the springs. j u

Many of the casings proposed for this purpose are quite expensive to manufacture and, since it is extremly difficult to get them to snugly fit the springs, they are more or less bunglesome and unsightly in appearance. Furthermore where a preformed casing is employed, many different sizes must. be manufacture/dto fit the different sizes and types of springs on the'market.

In the accompanying drawing:

Fig. 1 is a longitudinal sectional view illustrating myinvention applied to a part of an automobile spring;

Fig. 2 is a transversef sectional view through the strip hereinafter described; and

Fig. 3 is a view in side elevation illustrating a vehicle spring partly wound with the strip of the present invention.

Like numerals designate corresponding parts in all of the figures of the drawing.

--Referring to the drawing it will be seenv that the strip of the present invention comprises a strip of relatively thin fabric 5 whichmay be artificial leather, such asthe well known fabrikoid or pantasote, canvas A. strip of relatively thick felt is cemented ontdthe fabric back 5, said felt being indicated at 6. The felt is ofset with respect to the fabric back 5 which projts beyond said fabric back, as indicated at 6, A coating of wax composition 7 covers the exposed face of the felt and, in addition, overlaps the fabric strip 5, as indicated at 8. Thatface of the fabric strip 5 indicated at 9 and which is the part of the fabric strip left exposed by the offsetting of the felt strip is also coated with the wax composition. This wax composition is preferably composed of paraiiin, bees-Wax, linseed oil and red lead for coloring, but it is to be understood that the invention is' not limited to the use of this particular composition, since it is manifest that any suitable comparatively soft and water repellant substance may be used.

In. use, this strip, illustrated in Fig. 2 is wound in spiral formation about the spring to be protected, which is indicated at 10. The end ofthe strip adjacent the outer end of the spring is clipped in place by'a clamp 11 of a usual and Well known construction and which may be ofthe type of theA ordinary hose clamp, on the market. And this clamp also secures an oil cup 12 in position the spout 13 of said oil cup extending beneath the clamp and discharging its contents at such point that theLfelt strip will receive the same and distribute it throughout the length of the spring. An oil and iuid tight joint is formed by the wax com-A position the felt strip being pressedA snugly against ,the leaves of the springs with the edges of one convolution closely abutting the edges of adjacent convolutions and with the wax portions of the inner face of one convolution bearing upon and in firm engagement with the wax portions of the exterior face of the preceding convolution. By virtue of this arrangement a water and dust proof joint is had and, in addition, the spiral wrapping is caused to hug the spring closely. d

Before the wrapping of the sprin is started the felt strip 14 having a fabric ack 14a is preferably disposed beneath the spring and is wrapped into place along with the wrapping of the spring proper. rllhis pre- `vents the action of the spring leaves from i around that part indicated at 9 is caused to overlap the partl 6a and 8 and since. the felt is thicker than the fabric- 5, it follows that when this fabric is tightly drawn upon itA will compress the-felt firmly upon the leaves of the spring and this further aids in 'the joints -being made water and oil tight. The inner end of the wrapping may be secured' in position in any desired manner though I will preferably use a clamp of the character of that indicated at 11." 4

However, itis to be understood that the invention is not limited to any particular way of holding the ends of the wrapper in place, but consists rather in the idea of providing a spiral wrapper of this character irrespective of the particular material of which it is made or how it is'held in place.

It is to be understood that the invention is not limited to the precise construction set forth but that it includes within its -purview /whatever changes fairly come within either the terms or claims. v

Having described my invention what Iv claim is: i f l 1. A protective wrapper for vehicle springsof spiral formation having a waxlike composition along one edge to form a fluid-tight joint.

2. A wrapper of the character indicated adapted to be wrapped around a spring, of spiral formation and consisting of a relatively thin -outer fabric strip and a thicker inner felt strip the two being secured tothe spirit of the appended p gether inl overlapping relation, the 'width' in the overlapping portions of the said.

strips are coated with -a wax-like composition.

4. A structure as recited in claim 2 wherein the overlapping portions of the strips are coated with an adhesive water proof composition.

5. In combination a` strip adapted to bel wound about a spring in spiral formation,

a clamp for securing the strip onsaid spring and an o1l cup held inposition by said clamp and in position to discharge its contents into said wrapped strip.

6. A strip of the character .described adapted lto be wound about a spring in spiral formation, an oil cup and a clamp for holding the end of the strip and for holding said oil cup in .operative relation to said strip to discharge the contents of the yoil cup into the interior of said strip after the vlatter has been wrapped.

In testimony `whereof he axes his signature in the presence of two witnesses.

JOSEPH YOLO.

Witnesses: y a

FRANoEs BARNHI'LL, MARGARET PEARNE.. 

